posivibes is short for positive vibes. it's a high frequency state of being. when you have posivibes, you bring positive energy to those you interact with. posivibes is one of the best feelings to give and receive

Juan: "Gustin is always full of posivibes, i love that."
Amandimal: "Yeah, Gustin is a high frequency being, so posivibes come natural for him."